Concentrator



(No. Model.

0. E. SEYMOUR. GONGENTRATORJ No. 436,807. Patented se t. 23. 1890.

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UNITED STATES PATENT OFFICE.

CHARLES E. SEYMOUR, OF HURLEY, \VISCONSIN.

CONCENTRATOR.

SJPZECIFICATION- forming part of Letters Patent No. 436,807, dated September 23, 1890.

Application filed December 21, 1889. Serial No. 334,552. (No model) To all whom it may concern.-

Be it known that I, CHARLES E. SEYMOUR, of Hurley, in the county of Ashland and State of WVisconsin, have invented new and useful Improvements in Ore-Concentrators; and I do hereby declare the following to be a full, clear, and exact description of said invention, reference being had to the accompanying drawings, and to the letters of reference marked thereon, which form a part of this specification.

My invention relates to a device for use in ore concentration in which the ore is separated from the lighter intermingled material by the use of water through the action of centrifugal force and the attraction of gravitation.

In the drawings, Figure 1 is an elevation of my concentrator, the bowl being shown in central vertical section and other parts being broken away to show the interior construction. Fig. 2 is a top plan view of the bowl and encircling trough, parts being broken away to show the interior.

A is the frame'on which my device is supported. A vertical rotating shaft B is provided with a fixed pulley C, on which runs the power-supplying cable D. A circular concave bowl E is fixed to the shaft B, which passes water-tight through itcentrally. This bowl is adapted to receive a supply of the ore mingled with refuse. Awater-supply pipe F leads into the bowl, and preferably has its discharge near the bottom of the bowl, and is adapted to supply water for washing the refuse from the ore. A circular trough G, supported on the frame, is located close about the bowl, having its inner edge within a recurved flange or lip H, formed on the edge of the bowl. A waste-pipe Ileads away from the trough G. A short discharge-pipe K leads from the bowl at its bottom, which dischargepipe is provided with a gate L, adapted to close the pipe, and a plate-stopper M is preferably located on the interior surface of the bowl over the orifice of the discharge-pipe to keep ore or sediment out of the pipe until it is desired to let it pass into the pipe. An additional removable section of pipe or hose K maybe coupled to the pipe K for leading the away from the bowl to a greater distance,

I when desired.

A block N, fixed to the lower part of the will be raised to the extent of the height of the step N as the recess passes away from the step and will drop down again on the step as the recess comes to it, whereby the bowl as the shaft is rotated is given an intermitting vertical or pumping movement. This vertical movement of the shaft is also preferably controlled to a limited extent by the springs P and P. The spring P rests on a sleeve R, which turns by a screw-thread into a plate S, bolted to the frame A. At its other end the spring P bears against a collar R, movable on the shaft B and bearing at its upper edge against the lower surface of the bowl E. The spring P at one end bears against a sleeve T, which turns by a screwthread into a plate U, secured to the frame A, and at the other end the spring P bears against a movable collar T, which has. its lower bearing against a collar V, fixed on the shaft B. By turning the sleeves R and T in the plates S and U, respectively, the tension of the springs P and P may be adjusted as desired.

In use a quantity of ore mingled with refuse is thrown into the bowl E, and water is added thereto through the water-supply pipe F or by other convenient means. The discharge-pipe K being uncoupled from the pipe K, the shaft and bowl are rotated rapidly, and the water and refuse material, which are lighter than the ore, are thrown off by the centrifugal motion of the bowl over its edge into The mass of ore and refuse in the acquires from the rotation and shape of the bowl separates the lighter material from the ore and carries it over the edge of the bowl into the trough G, as heretofore described. This operation may be carried on continuously until the refuse material has been thus separated from a considerable quantity of the ore, when the rotarymotion is stopped, the plate M is removed, the gate L is opened, and the ore is discharged through the pipe K, which may be led away by the pipe K, coupled to the pipe K, if desired.

What I claim as new, and desire to secure by Letters Patent, is-

1. In an ore-concentrator, the combination, with a rotating concentrator-bowl, of a short outwardly-projecting discharge pipe or nozzle fixed in the bottom of the bowl and provided with a water-tight gate located in the pipe at a distance from the bowl, a removable platecover over the inner end of the dischargepipe, and a removable hose adapted to be coupled to the discharge-pipe, substantially as described.

2. In an ore-concentrator, the combination with a revoluble vertical shaft supporting thereon centrally a bowl adapted to hold a supply of ore and wat-er,of a collar and block bearing against each other, one affixed to the shaft and the other affixed to the frame, one having a step and the other a recess for receiving the same, whereby by the revolution of the shaft it is given an endwise motion, and springs arranged about the shaft, having their bearings so located and arranged as to limit and control the endwise movement of the shaft, substantially as described.

3. In an ore-concentrator, the combination of a concave ore-receptacle fixed upright on a centrally-piercing shaft, which shaft is provided with a collar bearing against a corresponding block on the frame, the block having a cam or step and the collar a corresponding recess, whereby as the shaft is rotated the receptacle is intermittingly raised and dropped, compression -'springs coiled around the shaft having their bearings arranged to control the vertical motion of the shaft, and a circular trough located about the receptacle near its upper edge and arranged to catch the overflow from the receptacle,

3 substantially as described.

In testimony whereof Iaffix my signature in' ipresence of two witnesses.

CHARLES E. SEYMOUR. Witnesses:

GEO. O. FosrER, WM. WALTER. 

